15 Peculiar Facts About Dogs That You Probably Didn't Know

6. Dogs Can Smell Serious Illnesses

Dogs have an extraordinary sense of smell that far surpasses anything humans are able to imagine. Their powerful noses allow them to detect even the slightest changes in body chemistry, which is why they’re often able to identify specific illnesses like cancer, diabetes, or low blood sugar. They are able to pick up on subtle odors that we can’t perceive—whether it’s through changes in breath, sweat, or skin. This incredible ability makes them highly effective in medical detection work, as they can warn their owners about health issues before the symptoms fully develop.